I have a problem, I'm not sure if it got to do with the firmware or whatever, but i was texting then my K850 then it just switched off.
I tried turning it back on but all it showed was a black screen and the keypad lighting up. and it was doing it three or four times till it stopped.
I take out the battery and insert it back in and turn it on and it does the same thing. i dont have my sim card or my memory card in and it still did the same thing. i have it on charge and i noticed that when i plugged it in a red/orange light was lit up on the power button, then it just repeated it self with a black screen and the keypad lighting up.